News tagged with pore complex

Changing the locks: HIV discovery could allow scientists to block virus's entry into cell nucleus

Scientists have found the 'key' that HIV uses to enter our cells' nuclei, allowing it to disable the immune system and cause AIDS The finding, published today in the open access journal PLoS Pathogens, provides a potential new ta ...

Medicine & Health / HIV & AIDS

created Dec 08, 2011 | popularity 5 / 5 (2) | comments 0 | with audio podcast

Putting light-harvesters on the spot

How the light-harvesting complexes required for photosynthesis get to their site of action in the plant cell is reported by RUB biologists in the Journal of Biological Chemistry. The team led by Prof. Dr. Danja Schunemann has de ...

Chemistry / Biochemistry

created Oct 19, 2011 | popularity not rated yet | comments 0

Mimicking nature at the nanoscale: Selective transport across a biomimetic nanopore

Researchers at Delft University of Technology and the University of Basel have established a biomimetic nanopore that provides a unique test and measurement platform for the way that proteins move into a cell's nucleus. In ...

Nanotechnology / Bio & Medicine

created Jun 20, 2011 | popularity not rated yet | comments 0

Polarized microscopy technique shows new details of how proteins are arranged

Whether you're talking about genes, or neurons, or the workings of a virus, at the most fundamental level, biology is a matter of proteins. So understanding what protein complexes look like and how they operate is the key ...

Chemistry / Analytical Chemistry

created Apr 17, 2011 | popularity 5 / 5 (1) | comments 1 | with audio podcast

'Cell surgery' using nano-beams

Using a simple glass capillary, atomic physicists at RIKEN are developing an ultra-narrow ion beam that pinpoints a part of organelles in a living cell, enabling biologists to visualize how the damage affects ...

Physics / General Physics

created Apr 04, 2011 | popularity 5 / 5 (3) | comments 0

Trigger mechanism provides 'quality control' in cell division

Researchers from Huntsman Cancer Institute (HCI) at the University of Utah report that they have identified a previously undiscovered trigger mechanism for a quality control checkpoint at the very end of the cell division ...

Biology / Cell & Microbiology

created Nov 22, 2010 | popularity 5 / 5 (1) | comments 0 | with audio podcast

Pore 'vision' improved

A team led by Naoko Imamoto of the RIKEN Advanced Science Institute in Wako, Japan, has uncovered processes governing the formation of functionally important structures called nuclear pore complexes (NPCs) ...

Biology / Cell & Microbiology

created Oct 18, 2010 | popularity not rated yet | comments 0

New fluorescence technique opens window to protein complexes in living cells

Fluorescent microscopy makes use of molecules, such as green fluorescent protein (GFP), that emit colored light when illuminated with light of a specific wavelength. Molecules like GFP can be used to label proteins of interest ...

Chemistry / Biochemistry

created Sep 21, 2010 | popularity 5 / 5 (2) | comments 0 | with audio podcast

Quantum dots track who gets into cell nucleus

(PhysOrg.com) -- UC Berkeley researchers Karsten Weis, Jan Liphardt, and colleagues have used fluorescent probes called quantum dots to determine which molecules get into the nucleus via its nano-pores and ...

Nanotechnology / Bio & Medicine

created Sep 02, 2010 | popularity 5 / 5 (1) | comments 1 | with audio podcast

Biologists reveal structure of cell nucleus 'gatekeeper'

(PhysOrg.com) -- Biologists led by associate professor Thomas Schwartz (MIT) have worked out a rudimentary architectural plan for the nuclear pore complex (NPC), the gatekeeper of the cell's nucleus.

Biology / Cell & Microbiology

created Oct 27, 2009 | popularity 4.2 / 5 (6) | comments 6

Come on in: Nuclear barrier less restrictive than expected in new cells

When it comes to the two basic types of cells, prokaryotes and eukaryotes, compartmentalization is everything. Prokaryotes are evolutionarily ancient cells that only have a membrane surrounding their outer boundary, while ...

Chemistry / Biochemistry

created Oct 06, 2009 | popularity not rated yet | comments 0

'Promiscuous' protein interactions found in the nuclear pore complex

(PhysOrg.com) -- The NPC is the only way in or out of a cell's nucleus. It plays a key role in cellular metabolism and signaling, and any malfunction in these pores can have lethal consequences. Now new research reveals further ...

Biology / Cell & Microbiology

created Sep 29, 2009 | popularity 5 / 5 (1) | comments 0

Solving the Nuclear Pore Puzzle

(PhysOrg.com) -- Computational biochemist Frank Alber compares determining the architecture of a macromolecular machine to solving a jigsaw puzzle.

Chemistry / Biochemistry

created Aug 19, 2009 | popularity not rated yet | comments 0

New research supports model for nuclear pore complex

(PhysOrg.com) -- To protect their DNA, cells in higher organisms are very choosy about what they allow in and out of their nuclei, where the genes reside. Guarding access is the job of transport machines called nuclear pore ...

Biology / Cell & Microbiology

created Aug 18, 2009 | popularity not rated yet | comments 0

Research suggests core nuclear pore elements shared by all eukaryotes

(PhysOrg.com) -- For perhaps 1.8 billion years after life first emerged on Earth, a sort of evolutionary writer’s block stalled the development of organisms more complicated than single cells. Then, a burst of experimental ...

Chemistry / Biochemistry

created Jul 13, 2009 | popularity 5 / 5 (1) | comments 0